Pump.



P. A. MYERS.

PUMP.

APPLICATION FILED FEB. 12, 1906.

907,164," Patented Dec. 22, 1908.

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operating the pump by hand and. the pump UNITED- STATES PATENT onnron.

PHILIP A. MYERS, or ASHLAND, OHIO, ASSIGNOR T0 r. n. MYERS AND BROTHER,0F,

- ASHLAND, onlo, A COPARTNERSHIP.

PUMP.

Specification 01 Letters Patent.

Patented'Dec. 22, 1908.

Application filed February 12, 1906. Serial No. 300,577.

To all whom it may concern: Be it known that i, PHILIP, A. MYEns, acitizen of the L Inted States, residing at Ashvland, in the county ofAshland and State of Ohio, have invented certain new and usefulImprovements in Pumps, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to pumps, and more particularly to that class ofpumps designed for use both as hand pumps and as windmillactuated umps,in which the connection he pump handle which isused rod is a rack andgear-segment connection.

The primary object of my present invention is to provide a simple,inexpensive and el'licient device whereby the gear segment on the pumphandle may be readily moved into and out'oi mesh w ith the rack, theformer being its position when the pump is operated by hand and thelatter its position when the pump is operated by the windmill.

A further object of the invention is to provide a structure of thischaracter such that the parts may be positively locked in their relativepositions when in mesh, so as to prevent accidental disengagementthereol'.

To these and other ends my invention con sists in certain novel featuresw hich 1 will now proceed to describe, and will then pan tic-ularlypoint out in the claim.

in the accompanymg drawings, l 'igure l is a side elevation of a pumpembodying my shown my invention as applied to a well known form of pump,1 indicates the standard, 2 the head, provided with a spout 3, 4 thefulcrum support rising from the standard, and ,5 the pump rod. Theseparts may be of any approved construction. The pump rod is flattened atits upper end and receives or has formed thereon a rack 6, and thesupport t is provided. with a guide 7 for this portion of the rod, andwith a roller 8, which bears against the back of the pump rod at thepoint where the gear segment meshes with the same. The support 4 is alsoprovided with a hood or housing 9, which incloses and protects the gearsegment. The gear segment, indicated by the reference numeral 10, issecured to .the end of the pump handle 11, being preferably providedwith an integral socket 12, into which ,the handle proper is threaded.The gear segment 10 is provided with a bearing sleeve 15, by means ofwhich it is mounted on a pivot 01' fulcrum 14, which latter is movabletoward and from the rack on the pump rod. To this end,

said pivot or fulcrum is mounted at one end of a pivoted arm or lever,said armor lever being pivotally mounted on the support 4 in such awaythat the end thereof which supports the fulcrum of the gear segment ismovable, as already stated, toward and from the rack. Preferably, thispivoted arm or lever comprises two parallel members 15, in the upperends of which the pivot 14 is mounted, the bearing sleeve 13 of the gearsegment 10 fitting between the members 15, while the pump rod alsopasses between the same. The pivot or fulcrum of said arm or lever isindicated at is, the support 4 being provided with a projecting lug 17to receive said pivot, which is preferably in the formof a bolt, asshown, passing through the lug l7, and through the two members 15 of thearm. The lug l7 iits between the members 15, which latter are thussteadied and guided thereby. The upper ends of the members 15 arereceived in recesses lb in the sides of the housing 9, so as to furtherguide and suppogt the arm or lever laterally at its upper en I Provisionis made for imparting to the pivoted arm or lever the movementneces saryto bring the gear segment into mesh with the rack and hold the samepositively in such inter-meshing position. T he construction which Iprefer for this purpose is that shown, in which the pivot orlulcrurn 16-of the arm or lever is located between the ends thereof, said armor-lever extending downward beyond said pivot or fulcrum and beingprovided at its lower end with the means 101' positively so moving itthat its up-' per end, which carries the gear segment, will be movedtoward the rack to engage the segment therewith. This means operatesbetween the lower end of the lever and the pump standard, or the supportforming a part thereof. In its preierred form, as shown, it consists 01a cam or eccentric 19, mounted on a pivot 20, carried by the lower endofthe arm or lever. Preferably, the pivot 20 is in the form of a boltpassing through the ends of the members 15, the cam 19 being providedwith a bearing sleeve 22, which fits between the members and throughwhich the pivot bolt passes. The cam 19 is provided with an operatinghandle 21, whichtis adapted to pass between the members 15 when theparts are in the position shown in the drawing, and may be convenientlyarranged to contact'with the lug 17 to limit its movement, as shown. Asalready stated, this cam acts against the adj acent surface of thestandard or fulcrum support, and by its eccentricity, when turned intothe position shown in the drawings, it

' forces the lower'end of the arm or-lever outward, and the upper endinward, carrying with it the gear segment and-bringing the same intomesh with the racki -It will at once be seen that, when the parts are inthis position, the cam 19 positively locks the arm or lever againstoutward motion atfits upper end, thereby holding the gear segmentpositively against displacement from' such position. When it is desiredto disengage the parts, the cam 19 is turned by means of its handle 21so as to withdraw the same from contact with the standard or support,whereupon the lower end of the lever is free to move inward, and. theupper end may be swung outward to disengage the segment from the rack.,It may be stated, in this connection, that the pivot or fulcrum 14,during the outward movement of the up er end of the lever, moves pastthe vertical p ne passing through the fulcrum 16, so vthat the weight ofthe parts connected to the upper end of the lever tends to move the sameoutward, this movement being limited by the contact of the lower end ofsaid level, or the cam 19 carried thereby, with the standard or support.By reason of this arrangement, the upper end of the lever is preventedfrom tendin to swin inward and thereby brin l g g g the segment intocontact with the rack again.

It will be seen that the construction is simple and efficient, and thatby its means the segment may be readily moved into and out of mesh withthe rack, the formerbeing its position when the pump is operated by handand the latter its position when the pump is operated from the windmill.Its movement into mesh is positive, and it is positively held in meshingposition so as to prevent accidental displacement.

I do not wish to be understood as limiting myself to the precise detailsof construction h'e-reinbefore described and shown in the accompanyingdrawings, as it is obvious that these details may be modified without departing from the principle of my invention.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

In a rack and gear pump adapted for both windmill and hand operation, astandard provided with a pivot lug, a pump rod provided with a rack, anarm comprising two substantially parallel members located on oppositesides of said pivot lug and ivotally connected thereto between their ens, a gear segment pivotally mounted between the members of said arm nearthe upper ends thereof and adapted to'mesh with said rack,

a pump handle operatively connected to said gear segment, a campivotally mounted between the members of said arm near the lower endsthereof, and means for, actuating said cam to cause the same to-engagesaid standard and swing said arm about its pivotal center.

In testimony whereof, I aflix my signature in presence of two witnesses.

PHILIP A. MYERS. Witnesses:

W. W. INGMAND, A. N. MYERS.

